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CV

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Name

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Structure Class

 Carbonaceous chondrites

Chemical Class

CV3

Country

Year found

1969

Mass

2 t

[Museum Collection]

(1) 6.7g   (2) 3.3g   (3) 3.2g   (4) 2.9g

(5) 2.7g   (6) 2.2g

This is 1 of 616 approved meteorites (plus 1 unapproved name) classified as CV3. Search for specimens in the Smithsonian Institution collection (U.S.): Search for this meteorite in the Natural History Museum collection (U.K.): Search for this meteorite in the Museo Nazionale dell'Antartide database (Siena, Italy): Published in Meteoritical Bulletin, no. 45, Moscow (1969) reprinted Met. 5, 85-109 (1970)

Allende
Nagjir 001

Name

*click on the Name for more information

Structure Class

 Carbonaceous chondrites

Chemical Class

CV3

Country

Year found

2021

Mass

4.8 kg

[Museum Collection]

(1) 2.9g   

History: 4 pieces that fit together were found within the Nagjir dense collection area near Bir Anzerane, Western Sahara. Carlos Muñecas (Expometeoritos) purchased the samples in July 2021 from a dealer in Morocco. Physical characteristics: Samples have dark gray-dark brown exteriors and have roughly tabular shapes. The cut face shows the interior has a chondritic texture composed of abundant dark and light-colored chondrules and CAIs set within a dark-colored matrix. Petrography: Description and classification (A. Love, App) Sample contains chondrules w/ avg. dia of 667 µm (n=39) and CAIs set in 22 vol% opaque matrix. Additional minerals are: chromite, very rare troilite, magnetite and rare phosphates. Geochemistry: (A. Love, App) Olivine Fa11.0±11.9 (Fa0.3-34.3, Fe/Mn=58.6±30.0, n=24); low-Ca pyroxene Fs1.5±1.8Wo1.0±0.2 (Fs0.5-5.6Wo0.6-1., n=7). Classification: Carbonaceous chondrite (CV3). Based on textures, mineral compositions, and magnetic susceptibility, sample is a CV3. Specimens: Carlos Muñecas (Expometeoritos) holds the 1676 g main mass. A polished thin section and a 26.69 g slice and endcut are on deposit at App.

NWA1465

Name

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Structure Class

 Carbonaceous chondrites

Chemical Class

CV3-an

Country

Year found

2001

Mass

3 kg

[Museum Collection]

(1) 16.2g   (2) 8.5g   (3) 7.0g   (4) 5.7g

(5) 4.7g   (6) 4.2g   (7) 0.32g

This is 1 of 6 approved meteorites classified as CV3-an. Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)

NWA3118

Name

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Structure Class

 Carbonaceous chondrites

Chemical Class

CV3

Country

Year found

2003

Mass

5.9 kg

[Museum Collection]

(1) 16.020g

This is 1 of 616 approved meteorites (plus 1 unapproved name) classified as CV3. Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)

NWA3133

Name

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Structure Class

 Carbonaceous chondrites

Chemical Class

CV7

Country

Year found

2004

Mass

4.19 kg

[Museum Collection]

(1)(2) 85g (8pieces)

This is 1 of 3 approved meteorites classified as CV7. Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005) Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150

NWA4502

Name

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Structure Class

 Carbonaceous chondrites

Chemical Class

CV3

Country

Year found

2005

Mass

100 kg

[Museum Collection]

(1) 3.6g   (2) 3.5g   (3) 3.2g

History: Purchased In 2006 by A. Aaronson. Physical characteristics: More than 100 kg of dark stones with smooth, desert-polished surfaces. The largest piece is 22.75 kg Petrography: (T. Bunch and J. Wittke, NAU) Well-defined chondrules, chondrule fragments, and refractory inclusions set in a slightly weathered matrix. CAIs are represented by Type A (a few are very large, up to 32 mm in diameter) and Type C are common, as are AOAs. Type B CAIs are low in abundance however, melilite mantled (Type B1) and fosterite bearing type B CAIs are present. Modal analyses (vol. %): chondrules = 48; CAIs and AOAs = 14; matrix = 38. Geochemistry: (M. S. Sapah, ANU, and A. N. Krot, UHaw) The meteorite matrix consists of small crystals of ferroan olivine, sulfides, magnetite, Ni-rich metal, tiny nepheline crystals, and small irregularly shaped regions of Ca,Fe-rich silicates (pyroxenes ± andradite). Matrix olivine has Fa48-54 and ferrosillite and wollastonite contents of matrix pyroxenes are 11-19% and 46-49% respectively. Fayalite content of chondrule olivine is Fa2-39, and ferrosillite and wollasonite contents of chondrule pyroxenes are 1-2%. Classification: (M. S. Sapah and A. N. Krot) Carbonaceous chondrite (CV3). The sample is CV oxidized. The degree of shock is S2 and the weathering degree is W1. Specimens: >83 kg Aaronson, 35 kg Eric Olson, 2.9 kg ANU, 284.6 g ASU, and 26 g NAU.

NWA12322

Name

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Structure Class

 Carbonaceous chondrites

Chemical Class

CV3

Country

Year found

2018

Mass

35.3 kg

[Museum Collection]

(1) 9.2g   (2) 18.2g   (3) 16.8g

History: Found in Niger and purchased in Morocco by Adam Aaronson in August 2018. Petrography: (A. Irving and S. Kuehner, UWS) Well-formed granular and BO chondrules (some composite; apparent diameter 1250 ± 690 µm) and fine grained CAI (some up to 4.5 mm across) are set in a fine grained matrix (~30 vol.%, orange-brown in thin section). Geochemistry: Olivine (Fa0.2-45.3, N = 3), orthopyroxene (Fs0.7-0.9Wo1.1, N = 2), clinopyroxene (Fs2.5Wo36.0; Fs21.4Wo44.1; N = 2). Classification: Carbonaceous chondrite (CV3). Specimens: 42 g including one polished thin section at UWB; remainder with Aaronson.

NWA14069

Name

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Structure Class

 Carbonaceous chondrites

Chemical Class

CVox3

Country

Year found

2020

Mass

1647 g

[Museum Collection]

(1) 30.6g   (2) 3.0g   (3) 2.12g  (4) 2.11g

History: Purchased by Eric Twelker in March 2020 from a Moroccan dealer. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Well-formed magnetite-bearing chondrules (apparent diameter 800±360 µm, N = 24) plus very fine grained, amoeboid CAI are set in a fine grained matrix (~40 vol.%, sepia-brown to opaque in thin section) containing accessory Cr-bearing magnetite and calcic plagioclase. No sulfides were found. One CAI is composed of gehlenite, perovskite, spinel and pleonaste, and contains a tiny Ir metal nugget. Geochemistry: Olivine (Fa11.8±10.3, range Fa0.3-27.5, N = 5), low-Ca pyroxene (Fs3.0±1.2Wo2.1±2.1, range Fs1.6-3.7Wo0.9-4.5, N = 3), subcalcic augite (Fs0.6Wo32.8), augite (Fs1.4Wo38.2; Fs49.5Wo49.4; N = 2), plagioclase (An80.2Or0.0; An90.1Or0.1; N = 2), magnetite (Cr2O3 = 0.1-1.1 wt.%, N = 3). Classification: Carbonaceous chondrite (CV3, oxidized). Specimens: 21.5 g including one polished thin section at UWB; remainder with Mr. E. Twelker.

NWA14743

Name

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Structure Class

 Carbonaceous chondrites

Chemical Class

CVox3

Country

Year found

2021

Mass

3.3 kg

[Museum Collection]

(1) 4.7g  

History: Purchased jointly by Craig Zlimen and Mark Lyon in December 2021 from an Algerian dealer. Physical characteristics: These specimens are noteworthy because of a strong preferred dimensional orientation of elongate, amoeboid to irregularly-shaped CAI. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Relatively large, well-formed, mostly spherical chondrules (apparent diameter 2170±670 µm, N = 27) are set in a fine grained matrix (~35 vol.%) containing Cr magnetite, pentlandite and rare taenite. Very fine grained CAI examined by electron microprobe analysis contain hedenbergite, aluminous diopside, and calcite. Geochemistry: Olivine (Fa7.1±4.9, range Fa0.4-13.4, N = 5), low-Ca pyroxene (Fs0.7±0.1Wo3.3±2.2, range Fs0.6-0.8Wo0.9-5.2, N = 3), diopside (Fs1.2±0.2Wo41.2±1.1, range Fs1.0-1.3Wo42.0-40.4, N = 2), magnetite (Cr2O3 0.3-1.6 wt.%, N = 7). Classification: Carbonaceous chondrite (CVox3). Specimens: 46.9 g including one polished mount and one large area polished thin section at UWB; remainder with Mr. C. Zlimen and Mr. M. Lyon.

NWA15057

Name

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Structure Class

 Carbonaceous chondrites

Chemical Class

CVox3

Country

Year found

2021

Mass

6.4 kg

[Museum Collection]

(1) 1070g

History: Purchased by Craig Zlimen in December 2021 from an Algerian dealer. Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed, unequilibrated chondrules (some with concentric rims, apparent diameter 1050±400 µm, N = 26) containing both fresh and devitrified glass together with relatively abundant CAI are set in a fine grained matrix (~40 vol.%, sepia brown to opaque in thin section) containing Cr-bearing magnetite, pentlandite, plagioclase and kamacite. Minerals in CAI include anorthite, spinel and gehlenite. Geochemistry: Olivine (Fa23.0±36.0, range Fa1.3-93.9, N = 6), low-Ca pyroxene (Fs1.4±0.6Wo0.8±0.3, range Fs0.7-2.1Wo0.3-1.1, N = 5), subcalcic diopside (Fs1.1Wo31.4), diopside (Fs0.7±0.0Wo45.7±0.6, range Fs0.7±0.0Wo45.3-46.1, N = 2), magnetite (Cr2O3 0.1-1.0 wt.%, N = 6). Classification: Carbonaceous chondrite (CVox3). Specimens: 21.4 g including one polished thin section at UWB; remainder with Mr. C. Zlimen.

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